Hand plane with reverse angle frog

Abstract

The improved hand plane of the present invention is used for planing wood, and includes interchangeable frog and blade assemblies. The plane includes a base with a sole and a throat, and a rear handle on the base adjacent the rear end. The frog is mounted in the base and extends upwardly and forwardly from the throat in a reverse angle so as to avoid interference with the handle. A blade is mounted to the frog with attachment screws accessible through the mouth of the throat in the sole of the plane. A pair of screws allows for depth and lateral positioning of the blade.

What is claimed is: 
     
       1. A hand plane for planing wood, comprising:
 a base with a sole and a throat, and opposite front and rear ends; 
 a rear handle on the base adjacent the rear end; 
 a frog secured to the base with a threaded member and having a longitudinal axis extending upwardly and forwardly from the throat; 
 a cutting blade secured to the frog with at least one threaded fastener to cut the wood during planing; and 
 a pair of screws extending through the base and into the frog to adjustably mount the frog to the base and thereby allow depth and lateral positioning of the blade. 
 
     
     
       2. The hand plane of  claim 1  wherein the frog is adjustably mounted in the base for depth adjustment, lateral adjustment, and mouth adjustment. 
     
     
       3. The hand plane of  claim 1  wherein the frog extends at an angle between 95°-120° relative to the sole. 
     
     
       4. The hand plane of  claim 1  wherein the frog has a concave curved front surface so as to provide a chip breaker. 
     
     
       5. The hand plane of  claim 1  wherein the blade is resharpenable. 
     
     
       6. The hand plane of  claim 1  wherein the blade is disposable. 
     
     
       7. The hand plane of  claim 1  further comprising a backup iron mounted to the frog so as to sandwich the blade between the frog and the backup iron. 
     
     
       8. The hand plane of  claim 1  wherein the blade mounts on the bottom of the frog such that the plane is a smooth plane. 
     
     
       9. The hand plane of  claim 1  wherein the blade mounts on the front of the frog so as to have a forwardly inclined longitudinal axis whereby the plane is converted to a scraper plane. 
     
     
       10. The hand plane of  claim 9  wherein the base has an upper surface and the frog resides below the upper surface. 
     
     
       11. The hand plane of  claim 10  wherein the base has an upper surface and the blade resides beneath the upper surface. 
     
     
       12. The hand plane of  claim 1  wherein the blade has opposite front and rear edges defining a blade plane which is non-parallel to the frog longitudinal axis. 
     
     
       13. The hand plane of  claim 1  wherein the blade has front and rear edges defining a blade plane which extends upwardly and rearwardly. 
     
     
       14. The hand plane of  claim 1  wherein the longitudinal axis of the frog is parallel to the screws. 
     
     
       15. A hand plane for planning wood, comprising:
 a base having opposite front and rear ends and a bottom sole; 
 a throat extending through the base and having a rear surface extending upwardly and forwardly; 
 a frog adjustably mounted in the throat and engaging the upwardly and forwardly extending throat surface; and 
 a blade adjustably mounted to the frog for cutting wood during planing. 
 
     
     
       16. The hand plane of  claim 15  wherein multiple threaded fasteners extend through the base and into the frog to adjust and secure the frog in a selected position in the throat, with at least two of the fasteners being angularly disposed with respect to one another. 
     
     
       17. The hand plane of  claim 15  wherein the frog is adjustably mounted in the base for depth adjustment and lateral adjustment. 
     
     
       18. The hand plane of  claim 15  wherein the frog has a concave curved front surface so as to provide a chip breaker. 
     
     
       19. The hand plane of  claim 15  further comprising a pair of screws extending through the base and into the frog to adjustably mount the frog to the base and thereby allow depth and lateral positioning of the blade. 
     
     
       20. The hand plane of  claim 15  wherein the frog extends at a forward angle, from bottom to top, between 95°-120° relative to the sole.